In the present work we use the methods applied to Lie algebras in [1]}, [2]}, [3]}.
First of all, if \(\mathcal {A}\rightarrow \mathcal {B}\)  and \(\mathcal {A}\lnot \cong \mathcal {B}\) , then \(\mathfrak {Der}(\mathcal {A})<\mathfrak {Der}(\mathcal {B})\) , where \(\mathfrak {Der}(\mathcal {A})\)  is the Lie algebra of derivations of \(\mathcal {A}\) . We compute the dimensions of algebras of derivations and check the assertion \(\mathcal {A}\rightarrow \mathcal {B}\)  only for \(\mathcal {A}\)  and \(\mathcal {B}\)  such that \(\mathfrak {Der}(\mathcal {A})<\mathfrak {Der}(\mathcal {B})\) .
